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An Efficient Substrate-Free Method of Producing SiO2-Based Nanoparticles for Superhydrophobic Applications.
de Castro, Lucas D C; Larocca, Nelson M; Oliveira, Osvaldo N; Pessan, Luiz A.
Afiliação
  • de Castro LDC; São Carlos Institute of Physics, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
  • Larocca NM; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, 13565-905 São Carlos, SP, Brazil.
  • Oliveira ON; São Carlos Institute of Physics, University of São Paulo, 13566-590 São Carlos, SP, Brazil.
  • Pessan LA; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, 13565-905 São Carlos, SP, Brazil.
ACS Omega ; 7(1): 1259-1263, 2022 Jan 11.
Article em En | MEDLINE | ID: mdl-35036787
We report on the preparation of SiO2-based nanoparticles readily available for superhydrophobic applications. In contrast to usual approaches, our process is substrate-free and based on electrostatic adsorption of small SiO2 particles onto large SiO2 cores with the aid of poly(diallyldimethylammonium chloride) followed by calcination and chemical modification with trichlorododecylsilane. The as-prepared nanoparticles are in powder form and exhibit stable superhydrophobic behavior at room temperature because of the unique combination between the hierarchical raspberry-like structure and low surface energy. If properly stored, the nanoparticles retain their functional properties for several months.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Omega Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Omega Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos